Finding the Fourth Proportional to 128,347.40, 192,506.37 and 33,586.76
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Solution
The fourth proportional to 128,347.40, 192,506.37 and 33,586.76 is: 50,376.28
Step by Step Solution
- Step 1: Write the proportion equation
128,347.40 : 192,506.37 = 33,586.76 : x - Step 2: Convert to fraction form
128,347.40/192,506.37 = 33,586.76/x - Step 3: Cross multiply
128,347.40x = 192,506.37 × 33,586.76 - Step 4: Simplify right side
128,347.40x = 6,465,664,285.13 - Step 5: Solve for x
x = 6,465,664,285.13/128,347.40 - Step 6: Final answer
x = 50,376.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.